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How to reset Lion back to the Setup Assistant
Authored by: nilness on Dec 05, '12 08:41:07AM

Thanks for the well written instructions. I've been using similar instructions going back to the 10.4 days. I've gotten a lot of helpful info from Mac OS X Hints over the years to make it happen!

As gopes pointed out, this is extremely useful to use, say, in a script so that you can fully update, setup, etc. a machine before handing it off to the end user or imaging it for deployment.

And since we're talking about resetting Lion here, short of other shortcuts, for many users erasing and reinstalling means starting with 10.6, updating to gain access to the App store, downloading >4GB, installing 10.7, and running software update. Pretty time consuming just to remove a user account.

As agentx suggests, any machine being transferred from owner to owner should be wiped and erased first by the original owner, and again by the new owner. Sure, zeroing the data and doing a full install & update of the operating system TWICE IN A ROW may require a lot of time, a fair amount of effort, and no small amount of technical knowledge, but to borrow a line from Aliens, "It's the only way to be sure"

For any place that has to set up more than a few units for sale/deployment/imaging/whatever, it's invaluable to be able to get all software updates & installs done to a machine and then reset it to the welcome sequence.

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How to reset Lion back to the Setup Assistant
Authored by: David Allen on Dec 06, '12 11:38:50AM

You would only need to start with Snow Leopard if the Mac has only had Leopard or Snow Leopard installed on it. Or if it is an older Mac with a new HDD. If the Mac has already had either Lion or Mt Lion and does not have a new HDD or it shipped with Lion or Mt Lion, then there is no need to install Snow Leopard, you would use OS X Recovery;

Or if it is one of the following models that did not ship with Lion or Mt Lion, the EFI firmware can be updated to use OS X Recovery;

Yes, it requires an internet connection and yes, you will need to download the installation at 4 to 5 GB.

Dah•veed |David Allen|
Monterrey, NL, Mexico

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